Ventilating device

A ventilating device comprising:

• a frame forming an outer profile of the ventilating device and provided with air inlet and an air outlet,
• an air blowing unit for directing air from the air inlet to the air outlet;
• a control circuit board for controlling operation of the air blowing unit,
• an operation switch for adjusting a rotating speed of the air blowing unit by the control circuit board, and
• a circuit board box for accommodating the control circuit board,
• wherein the circuit board box comprises a first accommodating portion in which the operation switch is housed and a second accommodating portion in which the control circuit board is housed,
• wherein the first accommodating portion comprises a first opening that functions as an operation port for access from exterior of the circuit board box to the operation switch and a panel for covering the first opening,
• wherein the frame is provided with a second opening at a position opposite to the first opening;
• wherein the panel is exposed from the second opening to exterior of the frame, and
• wherein a sealing portion is provided around the first opening.